MC68HC16Z1CPV16 Datasheet, PDF (90/500 Pages) Freescale Semiconductor, Inc – Symbols and Operators, CPU16 Register Mnemonics

Freescale Semiconductor, Inc.
Table 4-3 Instruction Set Abbreviations and Symbols
A — Accumulator A
AM — Accumulator M
B — Accumulator B
CCR — Condition code register
D — Accumulator D
E — Accumulator E
EK — Extended addressing extension field
IR — MAC multiplicand register
HR — MAC multiplier register
IX — Index register X
IY — Index register Y
IZ — Index register Z
K — Address extension register
PC — Program counter
PK — Program counter extension field
SK — Stack pointer extension field
SL — Multiply and accumulate sign latch
SP — Stack pointer
XK — Index register X extension field
YK — Index register Y extension field
ZK — Index register Z extension field
XMSK — Modulo addressing index register X mask
YMSK — Modulo addressing index register Y mask
S — Stop disable control bit
MV — AM overflow indicator
H — Half carry indicator
EV — AM extended overflow indicator
N — Negative indicator
Z — Zero indicator
V — Two’s complement overflow indicator
C — Carry/borrow indicator
IP — Interrupt priority field
SM — Saturation mode control bit
PK — Program counter extension field
— — Bit not affected
∆ — Bit changes as specified
0 — Bit cleared
1 — Bit set
M — Memory location used in operation
R — Result of operation
S — Source data
X — Register used in operation
M — Address of one memory byte
M +1 — Address of byte at M + $0001
M : M + 1 — Address of one memory word
(…)X — Contents of address pointed to by IX
(...)Y — Contents of address pointed to by IY
(...)Z — Contents of address pointed to by IZ
E, X — IX with E offset
E, Y — IY with E offset
E, Z — IZ with E offset
EXT — Extended
EXT20 — 20-bit extended
IMM8 — 8-bit immediate
IMM16 — 16-bit immediate
IND8, X — IX with unsigned 8-bit offset
IND8, Y — IY with unsigned 8-bit offset
IND8, Z — IZ with unsigned 8-bit offset
IND16, X — IX with signed 16-bit offset
IND16, Y — IY with signed 16-bit offset
IND16, Z — IZ with signed 16-bit offset
IND20, X — IX with signed 20-bit offset
IND20, Y — IY with signed 20-bit offset
IND20, Z — IZ with signed 20-bit offset
INH — Inherent
IXP — Post-modified indexed
REL8 — 8-bit relative
REL16 — 16-bit relative
b — 4-bit address extension
ff — 8-bit unsigned offset
gggg — 16-bit signed offset
hh — High byte of 16-bit extended address
ii — 8-bit immediate data
jj — High byte of 16-bit immediate data
kk — Low byte of 16-bit immediate data
ll — Low byte of 16-bit extended address
mm — 8-bit mask
mmmm — 16-bit mask
rr — 8-bit unsigned relative offset
rrrr — 16-bit signed relative offset
xo — MAC index register X offset
yo — MAC index register Y offset
z — 4-bit zero extension
+ — Addition
− — Subtraction or negation (two’s complement)
∗ — Multiplication
/ — Division
> — Greater
< — Less
= — Equal
≥ — Equal or greater
≤ — Equal or less
≠ — Not equal
• — AND
' — Inclusive OR (OR)
⊕ — Exclusive OR (EOR)
NOT — Complementation
: — Concatenation
⇒ — Transferred
⇔ — Exchanged
± — Sign bit; also used to show tolerance
« — Sign extension
% — Binary value
$ — Hexadecimal value
4-30
CENTRAL PROCESSING UNIT
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